Woman applying a face serum

This $15 Anti-Aging Serum 'Outperforms $200 Products,' According to Amazon Shoppers

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This story originally appeared on InStyle.com by Maya Gandara.

Hyaluronic acid is universally beloved for its ability to transform mature skin concerns overnight. Similar to collagen, the naturally occurring substance depletes in the skin overtime, leading to a loss of elasticity and age spots. Luckily, as Dr. Lian Mack, certified dermatologist, previously shared with InStyle, applying hyaluronic acid back into the skin can "help to reduce wrinkles and fine lines by creating a barrier that retains water in the skin." 

Here's more good news: The L'Oreal Paris Revitalift Hyaluronic Acid Serum (Buy It, $15, was $24, amazon.com) is discounted to $15 on Amazon right now. The age-defying formula has racked up over 19,000 five-star ratings from shoppers (one bottle is sold every minute), and even earned a spot in actress Gemma Chan's regimen for its ability to transform the skin with zero negative side effects.

The L'Oreal Paris Revitalift Hyaluronic Acid Serum i
Credit: Amazon

The formula contains two types of hyaluronic acid: one percent of low-molecular weight and 0.5 percent of high-molecular weight that give the skin both immediate results and long-lasting effects. Troubled skin will appear smoother and hydrated within days of consistent applications, while pesky age lines, bumpy texture, and dullness are softened and rejuvenated overtime. 

The anti-aging serum has plenty of rave reviews to match its thousands of ratings; one person said it "outperforms $200 products," while fellow shoppers wrote it's easily "the best beauty product out there," calling it the "world's best serum." Another reviewer felt that their skin looked "five years younger" after just one week of application.

One person even compared their results to that of professional treatments: "It did plump up the lines permanently after a couple of months' use. It was accumulative and gradual but did work," they wrote. "The surprise, however, came several months after using. I went without makeup, and noticed the lines on my forehead were gone! I did not anticipate that it could erase those lines — I thought those results were impossible to accomplish." (Related: The 11 Best Anti-Aging Serums, According to Dermatologists)

"I am 81 years old and have very dry skin," shared another reviewer who "wished they had taken a picture" prior to use of the serum. "I decided to use this hyaluronic [serum] on the back of my hands and my forearms. I can hardly believe how much the skin has improved in just 10 days."

Hop on the bandwagon and snag the L'Oreal Paris Revitalift Hyaluronic Acid Serum while it's down to $15 per bottle on Amazon.